//: C07:UnionClass.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Unions with constructors and member functions
#include<iostream>
using namespace std;

union U {
private: // Access control too!
    int i;
    float f;
public:
    U(int a);
    U(float b);
    ~U();
    int read_int();
    float read_float();
};

U::U(int a)
{
    i = a;
}

U::U(float b)
{
    f = b;
}

U::~U()
{
    cout << "U::~U()\n";
}

int U::read_int()
{
    return i;
}

float U::read_float()
{
    return f;
}

int main()
{
    U X(12), Y(1.9F);
    cout << X.read_int() << endl;
    cout << Y.read_float() << endl;
} ///:~
